Attachment for a truck box



FIG. 1 is a perspective view of a first embodiment of an attachment fora truck box, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a perspective view thereof, shown in a condition of use on atruck box;

FIG. 9 is a perspective view of a second embodiment of an attachment fora truck box;

FIG. 10 is a front view thereof;

FIG. 11 is a rear view thereof;

FIG. 12 is a right side view thereof;

FIG. 13 is a left side view thereof;

FIG. 14 is a top view thereof;

FIG. 15 is a bottom view thereof; and,

FIG. 16 is a perspective view thereof, shown in a condition of use on atruck box.

The broken lines showing a truck box in FIGS. 8 and 16 depictenvironmental subject matter which forms no part of the claimed design.The broken lines within the claimed structure illustrate portions of theattachment, which form no part of the claimed design.

CLAIM The ornamental design for an attachment for a truck box, as shownand described.